Winding spindle



A. BERIA WINDING SPINDLE Jan. 9, 1951 5 Sheets-Sheet l Filed Jan. 21, 1948 FIG.1

l I l Jan. 9, 1951 A, BERIA 2,537,506

, WINDING SPINDLE Filed Jan. 21, 1948 5 Sheets-Sheet 2 FIG.3

Fio FIG. 6

A. BERIA WINDING SPINDLE Jan. 9, 1951 5 sheets-sheet s Filed Jan. 21, 1948 Jan. 9, 1951 5 Sheets-Sheet 4 Filed Jan. 2l, 1948 A. BERIA WINDING SPINDLE Jan; 9, 1951 7^ 5 Sheets-Sheet 5 Filed Jan. 2l, 1948 INVENTOR. ,dif/fan@ 5er@ mmf/w l Patented Jam 9, 1951 UNITED STATES PATENT OFFICE WINDING SPINDLE Antonio Betia, Turin, `Italy Application January 21, 1948, Serial No. 3,492

In Italy January 22, 1947 It is an object of this invention to provide theV spindle with means for imparting a double twist to the thread as it is wound on the spool.

The accompanying drawing shows some constructions of my improved spindle.

Figures 1 and 2 are axial sections perpendicular to each other of a spindle construction.

Figures 3, 4, 5 and 6 are cross sections on lines III-IIL IV-IV, V-V, VI-VI of Figures 1 and 2, Figures 5 and 6 being on a double scale.

Figure 7 is part plan View of the spindle,

Figures 8, 9 and 10 show a detail of a pneumatic drive for the bell carrying the spool,

Figure 11 shows a magnetic drive for the bell,

Figure 12 shows a detail view of the lower spindle end of a modied construction.

Figure 13 shows a rotating antiballooning device with whichthe spindle may be provided.

Figure 14 is a sectional view of a modified spindle construction in which the alternating endwise movement of the thread guide casing is dispensed with.

Fig. 15 shows how the axis of the spindle is inclined with respect to the vertical.

Referring to Figures 1 to 6 of the drawings, I denotes the spindle body, performing a rotary movement about its longitudinal axis. The spindle is mounted on its support in such manner that its axis of rotation is inclined with respect to the vertical.

The body I is formed at the top with a bore 2 ending at the side opening 3 (Fig. 2). The body I is formed at its lower end with an axial cylindrical recess 4 provided with two longitudinal slots 5 rectangular in section which are extended upwardly over a certain length.

The longitudinal slots receive two rods 6 connected through the pivot 1 to the cylindrical element 8 moving endwise Ain the recess 4, whereby the longitudinal reciprocating movement is transmitted to both rods 6.

The latter are connected by pivots 9 to the bushing II) which is'capable of longitudinal movement with respect to) the body I.

The reciprocating movement is transmitted to the unit formed by the element 8, rods Bfand bushing Ill by means of the cylindrical rod II which is connected at its lower end by means of the ball bearing l2 to the member I3 to which is imparted the desired reciprocating movement by any suitable mechanism.

The bushing I0 carries a ball bearing 13 fixed in turn to a circular plate I4 provided with three pillars I5 (Fig. 3) carrying in turn the upper ring I6.

'I'he unit formed by the circular plate I4, pillars I5 and ring I6 will be referred to hereinafter as the unit.

On rotation of the spindle, the unitls prevented from rotating and performs an angular reciprocating movement. On account of this, the spindle is mounted in an inclined position with respect to the vertical V-V (Fig. 15) and the unit is fitted with a suitable counterweight 62 (Fig. 15) so that, on rotation of the spindle, a couple of forces is generated, which prevents the unit from rotating.

As will be seen from Figures 2 and 3, the unit is provided with a spindle I1 pivoted at its upper and lower ends to the ring I6 and circular plate I4. The spindle I1 has xed thereto a thread guide carrier I8 which is pressed by spring means 63 towards the axis of the spindle body.

The spindle body is screw threaded at its upper end for connection with the collar I9.

'I'he spindle body is flxedly connected at the top with the inner'race of a ball bearing 52 of which the outer race is connected with the bell 20 consisting of a cylindrical or conical member provided at its lower end with the blades 2l shown in Figs. 2 and 4.

At the level of this blade row the spindle body is formed with ascrew-threaded portion for connection with a further bladed wheel 22 screwed on said screw-threaded portion of the spindle body, and adjustable in height by means of the lock-nut 23.

The spindle body has attached thereto somewhat lower acup 24 carrying the thread guide 25 and, further below, a bell 26 having two annular ribs 21 forming a drive pulley for the belt driving the spindle.

'I'he spindle is supported within the bell by a. supporting element 28, through the interposition of two ball bearings 29.

The thread is fed at constant speed by a mechanism not shown through the thread guide 30 arranged on the extensionof .the spindle axis, forms the usual balloon, reaches the thread guide 25 and side opening 3, is fed upward through the longitudinal bore 2, travels on the rounded edge of the collar I9 to the roller 3I (Fig. 7) down to the thread guide I8 and is wound on a cardboard spool 32 fitted on the cylindrical or conical portion of the bell 20.

To enable rotation of the latter at the speed corresponding to the rate of feed of the thread, a slip connection is required between thebell and the spindle body which rotates at a far higher speed. This connection is established by the spring mechanism 33 (Fig. 2) which presses a disc 53 of suitable material against the upper side surface of the outer race of the ball bearing 52 of the bell 20.

` By tightening more or less the collar I9, it is possible to vary the action ofthe spring 33 and, consequently the torque imparted to the bell. This connection, however, is not alone suillcient, since a mechanical connection is diiicult in adjustment and liable to become overheated. Consequently, a pneumatic connection is adopted between the two bladed wheels 2l, 22, which act as driving and driven member, respectively.

Adjustment of torque is easily effected by vertical displacement of the bladed wheel 22 which is fixed in its adjusted position by means of the lock-nut 23, thus effecting the desired adjustment in accordance with the gauge of the thread. In order to insure a strict uniformity of tension over the whole winding operation, the braking effect due to Ethe friction of the thread guide against the spool should conform with a certain law as the diameter of the wound spool increases. I employ for this purpose a spring mechanism 63. Figures 8 to 10 show a modified device for varying the torque transmitted to the bell 20 by the slip connection 2l, 22 on variation of the outer diameter of the spool during winding of the thread. With this device, the variable braking action of the thread guide 4referred to above may become unnecessary. In this case the bladed wheel 22 is rigidly secureds to the spindle body and is not adjustable in height.. A thin perforated metal plate 34 is slidably arranged in recess in the hub in the wheel 22 and cannot be rotated thereby as it is slidably pressed against one of the pillars I5. A further apertured plate 35 rests on the iirst mentioned plate 34.

It will be obvious that by rotating either plate with respect to the other, the plates act together as avalve adjusting iiow of air to the blades 2|, 22. This rotation is obtained by connecting the plate 34 for rotation with the spindle I1 carrying the thread guide I8 which is provided in this case with a. lateral projection 36. As shown in Figure 8, on rotation of the shaft l1 at a rate which is a function of the diameter of the spool being wound, the projection 36 rotates the plate 35 thereby throttling theA air stream owing tothe blades 2l, 22 and transmitting a torque to the bell 20 such as to maintain the tension of the thread constant.

It will be obvious that for winding spools of relatively small size, the construction described above7 which is suitable for winding large quantitles of thread on big-size spools, may be simplified.

For instance, the two bladed wheels may be replaced by a magnetic slip coupling as shown in Fig. 1l. The bell 20 is provided at its lower p0rtion-with a circular metal ring 38. The bladed wheel 22 is replaced by a wheel carrying one or more magnets 31. This coupling may be adjusted by adjusting in height the position of the magnet wheel.

In the case of very small spools, the adjustable sliding brake acting on the collar I9 may be found suicient and, in still more favourable cases, it will be possible to dispense with the bell 20 allowing the spool to rotate simply by friction on the when an accurate cross winding is `not required, the thread guide I8 may be dispensed with and replaced by a stationary thread guide connected with the unit.

The reciprocating motion transmitted to the unit may be such as to lay superposed cylindrical layers of thread. as is generally the case in winding frames, or superposed conical layers, as is generally the case in ring" or cap spindles.

In any case, the spindle will maintain its peculiar feature of being a double twist winding spindle.

Figure 12 shows a modified construction of the lower spindle end. The rods 6 are connected with the bushing 39 which carries the ball bearing 40 through which it is connected with the bushing 4| performing a reciprocating motion.

As mentioned above, the spindle may be provided with stationary or rotating anti-ballooning devices. Fig. 13 shows a rotating anti-ballooning device consisting of a tube 42 conveniently secured within the rotating cylinder 43 and directly connected with the side opening 3. In this case, the thread 1s introduced into the tube by a strong suction at the collar I5.

Figure 14 shows a further construction of my improved spindle.

The circular plate i4 does not perform an endwise reciprocating movement, and is merely rotatable about the axis of the spindle l. The plate is provided with a counterweight (62, Fig. 15,) whereby it is not rotated by the spindle which is mounted with an inclined axis. This construction dispenses with the rods and associated parts for transmitting the reciprocating movement to the plate I4. A vertical spindle is carried by the plate I4 and has slidably mounted thereon the thread guide 60, a small slit 44 being cut in the hub 6l thereof.

The lower cup 24 is of special form as shown with an outer U-shaped edge and carries at its periphery a number of pillars 48 connected at the top with a circular ring 49. One of said pillars 48 is formed with a longitudinal bore 50 connected by means of a tube 5l with the side open- 'ing 3 cut in the spindle body. The thread is fed through the thread guide 30, bo're 50 in the pillar 48 and tube 5 l reaching, through the opening 3 and central bore in the spindle body, to the guide bowl 41 and thread guide 60 and is wound on-the spool.

A thin steel disc 45 may slide longitudinally with respect to the pillars 48 which set it in rotation. Since the inner edge of said disc reaches within the slit 44 in the hub 6I of the thread guide 60, the latter follows the reciprocating movement imparted to the disc 45 as it rotates. This reciprocating movement is derived through conventional mechanism which impaii'- said movement to the annular support 46 guiding and supporting the disc.

What I claim is:

1. Winding spindle for imparting a double twist to thread operating at high rotation speeds, comprising in combination a support, a bell mounted on ball bearings on said support, means for rotating said bell on its axis inclined with respect to the vertical, a spindle fixedly connected with said bell, the axis of said spindle being coincident with the axis of said bell, said spindle being axially bored in its upper portion, said axial bore being connected at its lower end with a hole opening on the outer spindle surface, a ball bearing on the upper end of said spindle, a second bell carrying the spool on which the thread is spindle asin normal winged spindles. Similarly. 7| wound mounted on said bau bearing, means for amamos rotating at an adjustable speed said second bell in the same direction as the spindle, means for varying the rotation speed of the bell carrying the spool as the spool diameter varies, a thread guide, a support for said thread guide, means for rotating said support with respect to said spindle,

Ameans for displacing thread guide parallel with the spindle axis, and means for guiding the thread.

2. Winding spindle for imparting a double twist to thread operating at high rotation speeds, comprising in combination a support, a bell mounted on ball bearings on said support, means for rotating said bell on its axis inclined with respect to the vertical, a spindle flxedly connected with said bell, the axis of said spindle being coincident with the axis of said bell, said spindle being axially bored in its upper portion, said axial bore being connected at its lower end with a hole opening on the outer spindle surface, a ball bearing on the upper end of said spindle, a second bell carrying the spool on whichV the thread is wound mounted on said ball bearing, a friction clutch that permits dragging of said second bell by the spindle, the bell carrying the spool on which the thread is wound ending at its lower end with a plate having iixed to its lower face a bladed annulus, a further bladed annulus fixed to the spindle and acting as a prime mover with the first-mentioned one. means for adjusting the dragging torque which acts between the blades xed to the spindle and the blades fixed to the bell, a thread guide, a support for said thread guide, means for preventing said support from being carried along in rotation by the spindle, means for displacing the thread guide parallel with the spindle axis, and means for guiding the thread.

3. Winding spindle for imparting a double twist to the thread operating at high rotation speeds as claimed in claim 2, wherein the friction clutch which provides dragging by the spindle of the bell carrying the spool, comprises a disc pressed against the side surfaces of the ball bearing carrying said bell, said disc being pressed by an elastic system, and means for varying the pressure exerted on said disc by said elastic systenl.

4. Spindle as claimed in claim 2, and in which means are provided for axially displacing the bladed annulus fixed to said spindle for adjusting the dragging torque exerted by the spindle on the bell carrying the spool.

5. Spindle as claimed in claim 2, wherein the means for varying the dragging torque'exerted by the spindle on the bell carrying the spool consists of two superposed discs rotatable on the spindle axis, and having holes through which the air forced by the blades fixed to the spindle against the'blades secured to the bell ilows, said holes being arranged in such manner that the relative rotation of the discs throttles the airin- `let to the blades, and means for varying the relawith a hole opening on the outer spindle surface. a ball bearing on the upper end of said spindle, a second bell carrying the spool on which the thread is wound mounted onxsaid ball bearing, said second-mentioned bell having at its lower end a plate on the lower face oi' which is ilxed a ring of ferromagnetic material, facing said ring, a further ring on the spindle carrying magnets, the dragging torque which acts between the spindle and bell carrying the spool being adjustable by displacing along the spindle axis the last mentioned plate, a thread guide, a support for said thread guide, means for preventing said support from being carried along in rotation by said spindle, means for`displacing said thread guide parallel with the spindle axis, and means for guiding the thread.,

7. Winding spindle for imparting a double twist to the thread operating at high rotation speeds, comprising in combination a support, a bell mounted on ball bearings on said support, means for rotating said bell on its axis inclined with respect to the vertical, a spindle ilxedly connected with said bell, the axis of said spindle being coincident with the axis of said bell, said spindle being axially bored in its upper portion, said axial bore being connected at its lower end with a hole opening on the outer spindle surface,

`a ball bearing on the upper end of said spindle, a

second bell carrying the spool on which the thread is wound mounted on said ball bearing, means for rotating at an adjustable speed said second-mentioned bell in the same direction as the spindle,

means for varying the rotation speed of said second-mentioned bell as the spool diameter varies, a thread guide, a support for said thread guide which consists of a plate on which the shaft carrying the thread guide is mounted, spring means that keeps the tip of the thread guide constantly in contact with the wound thread coil, said plate being rotatably mounted on said spindle, a counterweight in an eccentric position with respect to said plate calculated in such manner that by effect of the spindle axis inclination, during rotation of the spindle the plate is merely allowed to swing about the spindle axis, means for displacing the thread guide parallel with the spindle dle axis is obtained by displacing the plate on which the shaft carrying the thread guide is mounted, said plate being mounted with the interposition of a ball bearing on a bushing coaxial with the spindle, said spindle being provided with slots, rods connected with said bushing and sliding in said slots in said spindle, and means for imparting to said rodsla reciprocating motion parallel with the spindle axis.

9. Device as claimed in claim 7, wherein the said spindle is provided with diametrically opposed grooves, and with an axial hollow space, the thread guide displacement parallel with the spindle axis being obtained by displacing the plate carrying the thread guide, said plate being mounted with the interposition of a ball bearing on a bushing coaxial with the spindle, two rods connected with said bushing and slidingin said grooves, said rods being connected at their lower end by means of a pin, an axial hollow space in said spindle in which said pin is rotatably mount- `ed, and means for reciprocating said pin with respect to the spindle axis.

10. Device as claimed in claim '1, wherein said spindle is provided with grooves. the thread guide displacement parallel with the spindle axis is obtained by displacing the plate carrying the thread guide, said plate being mounted with the interposition of a ball bearing on a bushing coaxial with the spindle, rods connected with said bushing and sliding in said grooves, a second bushing sliding along said spindle, said rods being connected at their lower end with said second bushing, and means for reciprocating said second-mentioned bushing with respect to the spindle axis.

1i. Winding spindle for imparting a double twist to the thread operating at high rotation speeds comprising in combination a support, a bell mounted on ball bearings on said support, means for rotating said bell on its axis inclined with respect to the vertical, a spindle xedly connected with said bell, the axis of said spindle being coincident with the axis of said bell, said spindle being axially bored in its upper portion, said axial bore being connected at its lower end with a hole opening on the outer spindle surface, a ball bearing on the upper end of said spindle, a second bell carrying the spol on which the thread is wound mounted on said ball bearing, means for rotating said second bell at an adjustable speed in the same direction as the spindle, means for varying the rotation speed of said second bell in accordance with the wound spool diameter, a thread guide, a support for said thread guide comprising a plate having mounted thereon symmetrically with respect to the spindle axis pillars and the shaft carrying the thread guide, said pillars and shaft carrying at its upper end a ring preventing deflection of the pillars and shaft due to centrifugal force, means for permitting relative motion of said plate with respect to the spindle, a counterweight in an eccentric position with respect to said plate calculated in such manner that by effect of the spindle axis inclination, during rotation of the spindle the plate is merely allowed to swing about the spindle axis. means for displacing the thread guide parallel with the spindle axis. and means for guiding the thread.

12. Device as claimed in claim 11, wherein the plate carrying the pillars is xedly connected with -the outer race ring of a ball bearing, the inner race ring of which is fixedly connected with the spindle, and means for displacing the thread guide along the axis of the shaft on which it is mounted.

13. Winding spindle for imparting a double twist to the thread operating at high rotation speeds, comprising in combination a support, a bell mounted on ball bearings on said support with its own axis inclined to the vertical, means for rotating said bell on its inclined axis, a spindle nxedly connected with said bell, the axis of said spindle being coincident with the axis of vsaid bell, said spindle being axially bored in its upper portion, said axial bore being connected at its lower end with a hole opening on the outer spindle surface, a ball bearing on the upper end of said spindle, a second bell carrying the spool on which the thread is wound mounted on said ball bearing, means for rotating said second bell at an adjustable speed in the same direction as the spindle, means for varying the rotation speed of the second bell carrying the spool in accordance with the wound coil diameter, a thread guide,'a support for said thread guide comprising a plate having mounted thereon pillars and said shaft carrying the thread guide, a ring connecting together the upper ends of said pillars and shaft and an axially symmetrical member fixed to said spindle comprising a pipe connected with the hole opening on the spindle outer surface.

14. Winding spindle for imparting a double twist to the thread operating at high .rotation speeds, comprising in combination a support, a bell mounted on ball bearings on said support with its axis inclined to the vertical, means for rotating said bell on its inclined axis, a spindle iixedly connected with said bell, the axis of said spindle being coincident with the axis of said bell, said spindle being axially bored in its upper portion, said axial bore being connected at its lower end with a hole opening on the outer spindle surface, a ball bearing on the upper end of said spindle, a second bell carrying the spool on which the thread is wound mounted on said ball bearing, means for rotating at an adjustable speed said second bell in the same ydirection as the spindle, means for varying the rotation speed of said second bell in accordance with the wound spool diameter, a thread guide, a support for said thread guide comprising a plate having mounted thereon pillars and the shaft carrying the thread guide, a ring for connecting together the upper ends of said pillars and shaft, said plate being fixed to the outer race ring of a ball bearing the inner race ring of which is iixedly connected with the spindle, a counterweight in an eccentric position with respect to said plate calculated in such manner that by effect of the spindle axis inclination, during rotation of the spindle, the plate is merely allowed to swing about the spindle axis, a third bell fixed to the spindle with upward directed concavity, pillars fixed on said last mentioned bell a further ring for connecting together the upper ends of said last-mentioned pillars, one of said pillars being bored, said bore being connected with the spindle axial bore, the thread guide hub, slidably mounted along the shaft carrying the thread guide, being provided in its outer face with a slot a disc engaged by said slot, means for rotating said disc together with said spindle, and means for displacing said disc parallel with the spindle axis.

15. Device as claimed in claim 14, wherein the means for displacement of said disc parallel with the spindle axis`consists of a body formed with a slot receiving the outer periphery of said disc,

and means for reciprocating said body parallel with the spindle axis.

16. Winding spindle for imparting a double twist tothe thread operating at high rotation speeds, comprising in combination a support, a bell mounted on bali bearings on said support with its axis inclined to the vertical, means for rotating said bell on its inclined axis, a spindle nxedly connected with said bell, the axis of said spindle being coincident with the axis of said bell, said spindle being longitudinally bored in its upper portion, said axial bore being connected at its lower end with a hole opening on the outer spindle surface, a ball bearing on the upper end of said spindle, a second bell carrying the spool on which the thread is wound mounted on said ball bearing, a friction clutch permitting drains by the spindle of said second bell, a plate at the lower end of said second bell having nxed to its lower side a bladed annulus. a further bladed annulus fixed to the spindle facing the first mentionedone, two superposed discs each provided with a forked arm, said discs having holes therein, arranged in such manner that relative rotation of the discs varies the inlets to the said bladed annulus. a thread guide. a support for :,samoo said thread guide comprising a supporting plate, pillars on said supporting plate, a ring connec`ting together the upper ends of said pillars. a. shaft on said support along which the thread guide is slidable parallel with the spindle axis. said shaft being rotatable on its axis and being provided with a lateral extension parallel with said shaft engaging the forked arm of one'ot the two perforated discs, the forked arm on the other disc being engaged by one of the pillars fixed to the supporting plate, the thread gui'de displacement in a plane perpendicular to the spindle axis varying the said inlets and, consequently, the magnitude of the dragging torque exerted by the spindle on the bell carrying the spool, means for displacing the thread guide parallel with the spindle axis, and means for guiding the thread. f

ANTONIO BERIA.

l0 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PA'I'ENTS Number Name Date 398,270 Lukens Feb. 19, 1889 2,410,674 Nelson Nov. 5, 1946 FOREIGN PATENTS Number Country Date 136,617 Switzerland Jan. 16, 1930 546,553 Germany Mar. 12, 1932 563,746 Germany Nov. 9, 1932 872.986 France Mar. 2, 1942 

